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TAS3202 Datasheet(PDF) 44 Page - Texas Instruments |
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TAS3202 Datasheet(HTML) 44 Page - Texas Instruments |
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44 / 69 page ![]() SDA SCL tf tSU-DAT tHD-STA tr tBUF tSU-STO P S tSP tSU-STA Sr tHIGH tHD-DAT tLOW tr tHD-STA S tf T0114-01 External Microcontroller V I(SDA) DVDD I P I P V I(SCL) SDA R P R P SCL TAS3202 TAS3202 External Microcontroller V I DVDD I P SDA or SCL R S (2) V S (1) R S (2) R P TAS3202 SLES208B – JUNE 2009 – REVISED MARCH 2011 www.ti.com NOTE SDA does not have the standard I 2C specification 300-ns internal hold time. SDA must be valid by the rising and falling edges of SCL. Figure 8-6. Start and Stop Conditions Timing Waveforms 8.11.1 Recommended I 2C Pullup Resistors It is recommended that the I2C pullup resistors RP be 4.7 kΩ (see Figure 8-7). If a series resistor is in the circuit (see Figure 8-8), the series resistor RS should be less than or equal to 300 Ω. Figure 8-7. I2C Pullup Circuit (With No Series Resistor) (1) VS = DVDD × RS/(RS – RP). When driven low, VS << VIL requirements. (2) RS ≤ 300 Ω Figure 8-8. I2C Pullup Circuit (With Series Resistor) 44 Electrical Specifications Copyright © 2009–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TAS3202 |
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